6520014 has 40 divisors (see below), whose sum is σ = 14758128. Its totient is φ = 2151360.

The previous prime is 6519991. The next prime is 6520057. The reversal of 6520014 is 4100256.

It is a happy number.

6520014 is a `hidden beast` number, since 652 + 0 + 0 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26934 + ... + 27174.

Almost surely, 2^6520014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6520014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7379064).

6520014 is an abundant number, since it is smaller than the sum of its proper divisors (8238114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6520014 is a wasteful number, since it uses less digits than its factorization.

6520014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 6520014 is about 2553.4318083708. The cubic root of 6520014 is about 186.8169063989.

The spelling of 6520014 in words is "six million, five hundred twenty thousand, fourteen".